Hi everyone, how can i get the all nodes from en existing pg vector store to use it for bm25 retriever? I've already tried to get it with:
index = VectorStoreIndex.from_vector_store(vector_store=vector_store)
nodes = index.docstore.docs.values()
print("nodes: ", nodes)
nodes: dict_values([])
It returns an empty dict even it has a value in the table